A Numerical Model to Simulate the Processing of Electrical Distribution Cables - Part I (Heat and Mass Transfer)

A numerical model is developed to simulate the curing and quenching of electrical distribution cables. The model considers a moving cable with possible three dimensional variations in properties and boundary conditions. Both heat and mass transport ort are included. A finite difference appmationoxiation is used to solve the governing equations. The key to the numerical solution is a Landau type transformation, applied to eliminate the moving axial boundary. Potential applications of the program are illustrated by examining a laboratory scale and full-sized facility; for example, surface film coefficients may be determined by combining experimental results and numerical predictions. It is demonstrated that the rate controlling resistance to heat transfer is shifted as the relative thickness of the insulation is changed.